Jump starter



FIG. 1 is a front view of a jump starter showing the new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front, top, and left side perspective view thereof; and,

FIG. 8 is a rear, top, and left side perspective view thereof.

The broken lines in the drawings illustrate portions of the jump starter that form no part of the claimed design. 

CLAIM The ornamental design for a jump starter, as shown and described. 